Now I tried something that works:

["three/examples/jsm/utils/BufferGeometryUtils.js" :as BufferGeometryUtils]

Was just gonna ask if you tried that 😄 :refer also works if you only need a couple of functions from it eg

["react-router-dom" :refer [createBrowserRouter RouterProvider Outlet]]
["@tanstack/react-query" :refer [QueryClient QueryClientProvider]]
["@tanstack/react-query-devtools" :refer [ReactQueryDevtools]]

https://shadow-cljs.github.io/docs/UsersGuide.html#classpath-js might be worth a skim too

That’s where I started. 😃

cljs-runtime is dev only, so only the app.js

Beautiful. Thank you!